styreenibutadieenikumin

Styreenibutadieenikumi, often abbreviated as SBR, is a synthetic rubber that is a copolymer of styrene and butadiene. It is the most common type of synthetic rubber produced globally, accounting for a significant portion of the world's rubber consumption. SBR is manufactured through emulsion polymerization or solution polymerization processes.

The properties of SBR can be varied by adjusting the styrene to butadiene ratio and the polymerization method. Generally, SBR exhibits good abrasion resistance, crack resistance, and aging properties. It is also known for its resilience and good tensile strength. However, it has lower elasticity and resistance to oil and solvents compared to natural rubber.

The primary application of SBR is in the tire industry, where it is used extensively for car tires, truck tires, and other tire treads due to its wear resistance and cost-effectiveness. Beyond tires, SBR finds use in a wide range of products including footwear soles, conveyor belts, hoses, gaskets, adhesives, and as an impact modifier for plastics like high-impact polystyrene. Its versatility and cost-effectiveness make it a staple material in many industrial and consumer goods.